This is a Japanese-language illustration (art) book.
The year 2007 marks Shinji Mizushima's 50th anniversary as a manga-ka, and his longtime publisher Akita Shoten is celebrating in a huge way with this hefty, high-quality hardcover gathering Mizushima's 1972-81 color art created for his baseball epic "Dokaben"! This boxed set also includes a fukusei genga--not an actual original piece of art, but a reproduction designed to look like one! Very limited quanties!